Page 65 in Review of Extension Research, January through December 1957. Summary of a survey for Agricultural Extension, Texas Agricultural College, College Station. 1957. 14 pages.
Pages 54-55 in Review of Extension Research, January through December 1957. Summary of research for Agricultural Extension, College of Agriculture, University of Illinois, Urbana. 1957. 7 pp.
Pages 53-54 in Review of Extension Research, January through December 1957. Information Sheet 540, Mississippi Agricultural Experiment Station, Mississippi State University, State College. 1956.